Pet comb



FIG. 1 is a rear view of a pet comb showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines depict portions of the pet comb in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for a pet comb, as shown and described. 